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include/my_base.h:
  Auto merged
include/my_global.h:
  Auto merged
include/my_sys.h:
  Auto merged
isam/test2.c:
  Auto merged
myisam/mi_check.c:
  Auto merged
myisam/mi_test2.c:
  Auto merged
myisam/myisamchk.c:
  Auto merged
myisam/myisamdef.h:
  Auto merged
mysql-test/r/func_group.result:
  Auto merged
sql/ha_myisam.cc:
  Auto merged
sql/handler.cc:
  Auto merged
sql/handler.h:
  Auto merged
sql/item_cmpfunc.h:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/opt_range.cc:
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sql/set_var.h:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_parse.cc:
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sql/sql_table.cc:
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sql/sql_test.cc:
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sql/sql_yacc.yy:
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sql/mysqld.cc:
  SCCS merged
sql/set_var.cc:
  SCCS merged
This commit is contained in:
unknown
2003-10-30 10:45:28 -08:00
parent a4161274ef 06ecf87e15
commit 52e86548c2
60 changed files with 2803 additions and 824 deletions
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73
include/my_sys.h
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@ -111,8 +111,6 @@ extern int NEAR my_errno; /* Last error in mysys */
#define MY_WAIT_FOR_USER_TO_FIX_PANIC 60 /* in seconds */
#define MY_WAIT_GIVE_USER_A_MESSAGE 10 /* Every 10 times of prev */
#define MIN_COMPRESS_LENGTH 50 /* Don't compress small bl. */
#define DEFAULT_KEYCACHE_BLOCK_SIZE 1024
#define MAX_KEYCACHE_BLOCK_SIZE 16384
/* root_alloc flags */
#define MY_KEEP_PREALLOC 1
@ -267,7 +265,8 @@ enum cache_type
enum flush_type
{
FLUSH_KEEP, FLUSH_RELEASE, FLUSH_IGNORE_CHANGED, FLUSH_FORCE_WRITE
FLUSH_KEEP, FLUSH_RELEASE, FLUSH_IGNORE_CHANGED, FLUSH_FORCE_WRITE,
FLUSH_REMOVE
};
typedef struct st_record_cache /* Used when cacheing records */
@ -504,14 +503,46 @@ my_off_t my_b_append_tell(IO_CACHE* info);
#define my_b_bytes_in_cache(info) (uint) (*(info)->current_end - \
*(info)->current_pos)
/* key_cache_variables */
typedef struct st_keycache
{
ulonglong size;
} KEY_CACHE;
typedef uint32 ha_checksum;
/* Pointer to a key cache data structure (see the key cache module) */
typedef struct st_key_cache* KEY_CACHE_HANDLE;
/* Key cache variable structure */
/*
The structure contains the parameters of a key cache that can
be set and undated by regular set global statements.
It also contains read-only statistics parameters.
If the corresponding key cache data structure has been already
created the variable contains the key cache handle.
The variables are put into a named list called key_caches.
At present the variables are only added to this list.
*/
typedef struct st_key_cache_var
{
ulonglong buff_size; /* size the memory allocated for the cache */
ulong block_size; /* size of the blocks in the key cache */
ulong division_limit; /* min. percentage of warm blocks */
ulong age_threshold; /* determines when hot block is downgraded */
KEY_CACHE_HANDLE cache; /* handles for the current and registered */
ulong blocks_used; /* number of currently used blocks */
ulong blocks_changed; /* number of currently dirty blocks */
ulong cache_w_requests; /* number of write requests (write hits) */
ulong cache_write; /* number of writes from the cache to files */
ulong cache_r_requests; /* number of read requests (read hits) */
ulong cache_read; /* number of reads from files to the cache */
int blocks; /* max number of blocks in the cache */
struct st_key_cache_asmt *assign_list; /* list of assignments to the cache */
int assignments; /* number of not completed assignments */
void (*action)(void *); /* optional call back function */
void *extra_info; /* ptr to extra info */
} KEY_CACHE_VAR;
#define DEFAULT_KEY_CACHE_NAME "default"
extern KEY_CACHE_HANDLE *dflt_keycache;
extern KEY_CACHE_VAR dflt_key_cache_var;
#define DFLT_INIT_HITS 3
#include <my_alloc.h>
/* Prototypes for mysys and my_func functions */
@ -650,16 +681,26 @@ extern int flush_write_cache(RECORD_CACHE *info);
extern long my_clock(void);
extern sig_handler sigtstp_handler(int signal_number);
extern void handle_recived_signals(void);
extern int init_key_cache(ulong use_mem);
extern int resize_key_cache(ulong use_mem);
extern byte *key_cache_read(File file,my_off_t filepos,byte* buff,uint length,
extern int init_key_cache(KEY_CACHE_HANDLE *pkeycache,
uint key_cache_block_size,
ulong use_mem, KEY_CACHE_VAR* env);
extern int resize_key_cache(KEY_CACHE_HANDLE *pkeycache,
uint key_cache_block_size, ulong use_mem);
extern void change_key_cache_param(KEY_CACHE_HANDLE keycache);
extern byte *key_cache_read(KEY_CACHE_HANDLE keycache,
File file, my_off_t filepos, int level,
byte* buff, uint length,
uint block_length,int return_buffer);
extern int key_cache_insert(File file, my_off_t filepos,
extern int key_cache_insert(KEY_CACHE_HANDLE keycache,
File file, my_off_t filepos, int level,
byte *buff, uint length);
extern int key_cache_write(File file,my_off_t filepos,byte* buff,uint length,
extern int key_cache_write(KEY_CACHE_HANDLE keycache,
File file, my_off_t filepos, int level,
byte* buff, uint length,
uint block_length,int force_write);
extern int flush_key_blocks(int file, enum flush_type type);
extern void end_key_cache(void);
extern int flush_key_blocks(KEY_CACHE_HANDLE keycache,
int file, enum flush_type type);
extern void end_key_cache(KEY_CACHE_HANDLE *pkeycache,my_bool cleanup);
extern sig_handler my_set_alarm_variable(int signo);
extern void my_string_ptr_sort(void *base,uint items,size_s size);
extern void radixsort_for_str_ptr(uchar* base[], uint number_of_elements,